baber/WOPTO huggingface dataset:
Patent GB-1520751-A (GB)
Title: Pigment compositions
IPC: C09B67/20
Filed: 1975-07-14
Abstract: 1520751 Pigment compositions PRODUITS CHIMIQUES UGINE KUHLMANN 14 July 1975 22989/75 Heading C4A A polydispersable pigment composition comprises (a) 5% to 75% by weight of inorganic or organic pigment, (b) 15% to 70% by weight of at least one water-miscible solvent for nitrocellulose or natural and synthetic resins and (c) 7% to 35% by weight of a mixture of dispersing agents comprising both a product of addition of ethylene oxide with castor oil and a product of addition of ethylene oxide with either para-nonylphenol or at least one fatty alcohol.
Patent GB-466458-A (GB)
Title: Device for securing gas bottles in respiratory appliances
IPC: A62B9/04
Filed: 1936-08-24
Abstract: 466,458. Respiratory apparatus. DRAGER, O. H. Aug. 24, 1936, No. 23177. Convention date, Aug. 24, 1935. [Class 81 (ii)] In respiratory apparatus embodying a gas cylinder, in order to permit correct alignment of the cylinder and the reducing valve, the cylinder 1 is secured to the base 6 of the apparatus by a metal or other strap 2 pivotally connected at 3 to a flexible bracket arm 4 partly encircling the cylinder, the free end of the strap having a bifurcated lug 10 engaged by a swing bolt 14 on the arm 4. The bolt 14 carries a nut 17 counterbored to receive a flange on the bolt whereby detachment of the nut is prevented. The Specification as open to inspection under Sect. 91 describes a closed-circuit apparatus embodying the above construction and also having a reducing valve pivotally-mounted on the base of the apparatus and secured to the cylinder. This subject-matter does not appear in the Specification as accepted.
Patent GB-1354286-A (GB)
Title: Performance of routine chemical reactions
IPC: G01N31/00
Filed: 1970-05-13
Abstract: 1354286 Filters K D BAGSHAWE 19 April [13 May 1970 29 Dec 1970] 23262/70 and 61627/70 Heading B1D [Also in Division G1] A vacuum filtration unit comprises conveyor band 31 comprising filter material of for example glass fibre and vacuum filtration beds 33, 34. The band 31 is fed stepwise past station 37, where pre-soak solution is fed from nozzle 38, station 47 where an analytical reaction mixture is filtered through the band and porous filter support 48, a subsequent station over filtration bed 34 where wash solution is supplied from wash head 55, and past a drying location 66 comprising heating element 67 and fan 68. A device for use in analysis and comprising a number of separate end-to-end interfitting sub-units (Fig. 1, not shown) may include as the base of one sub-unit a filter membrane of cellulose acetate or glass fibre sheet supported on a rigid or semi-rigid disc of porous polythene.
Patent GB-863170-A (GB)
Title: Improvements in or relating to the production of amido peptides
Filed: 1958-07-21
Abstract: The invention comprises compounds of the general formula: <FORM:0863170/IV (b)/1> and the esters thereof, wherein n is 1, 2 or 3, one of R1 and R2 represent-NH2, the other of R1 and R2 representing the radical of an amido acid or of a peptide which occurs in known di-or poly-peptides, the diethylamine salt of N-trity L-asparaginyl glycine and the benzhydrylamine salt of N-trityl L-asparaginyl L-leucine, and the preparation of compounds (I) by condensing at a temperature below room temperature a mono-amido-N-trityl amino acid of the general formula: <FORM:0863170/IV (b)/2> wherein one of R11 and R12 represent NH2 and the other representing OH, dissolved in an inert solvent, with a non salified amino group-containing amino acid ester in the presence of dicyclohexylcarbo diimide.  The invention further comprises a process for the preparation of an amido peptide of the general formula: <FORM:0863170/IV (b)/3> which comprises saponifying, or in suitable cases hydrogenolysing the ester (I) and detritylating the product; or first detritylating the ester (I) and then saponifying or in suitable cases hydrogenolysing the resulting ester; and the intermediate L-asparaginyl S-trityl L-cysteinyl L-prolyl L-leucyl glycine methyl ester.  The diethylamine salt of N-trityl asparaginyl glycine is isolated after hydrogenolysis of the benzyl ester in the presence of diethylamine and the benzhydrylamine salt is prepared by reacting the corresponding free acid with the base.  N-Trityl asparagine is prepared either by hydrolysis of the trityl ester with pyridine or by hydrogenolysis of the benzyl ester.  The diethylamine salt is prepared by hydrogenolysis of N-trityl asparagine trityl ester in the presence of diethylamine and isolating the salt.  L-Asparagine benzyl ester is prepared by passing hydrogen chloride through a chloroformic suspension of N-tritylasparagine benzyl ester.  Specification 863,171 is referred to.
Patent GB-1108705-A (GB)
Title: Improvements in cooling structure or combustion chamber
Inventor: MACAULEY ROBERT WALLACE
IPC: F23R3/08
Filed: 1966-05-25
Abstract: 1,108,705. Gas turbine combustion chambers. GENERAL ELECTRIC CO. May 25, 1966 [Oct. 1, 1965], No.23404/66. Heading F1L. The wall of a cooling structure, such as the wall of an annular flame tube in a gas turbine engine combustion chamber, is formed by axially overlapping rings 26, 28 having a corrugated spacer 32 welded there-between to define passages for the admission of cooling air. In order to produce a substantially uniform temperature profile around ring 28, crimps or weirs 42 are formed in the corrugations to reduce the crosssectional flow area of the cooling air passages. Ring 26 extends downstream of spacer 32 to form a region 44 where the velocity of the entering cooling air is reduced by diffusion. Additional cooling air is supplied through holes 48 aligned with the risers 40 of the corrugations.
Patent GB-1106664-A (GB)
Title: Improvements in and relating to membranes
IPC: B01D69/12
Filed: 1965-06-02
Abstract: Alginate membranes are prepared by applying a layer of an aqueous solution of an alkyl ammonium alginate to a porous substrate saturated with a solution containing polyvalent cations that form an alginate gel by reaction with the alginate solution, the alginate solution before application to the substrate being mixed with a softener, and after the gel-forming process the gel and the substrate are dried.  A hygroscopic liquid which is difficultly volatile is preferably used as softener, e.g. glycerol. When the membrane is washed through e.g. in the case of filtrations, the softener is washed out by water.  The partly shrunk alginate membrane on drying is detached from its connection with the substrate and the membrane together with the filter residue from the substrate removed.  The membrane may be floated off the substrate.  In examples, a sheet of porous filter substrate is saturated with an aqueous solution of AlCl36H2O, or La(NO3)3. 6H2O.  A solution of sodium alginate and glycerine is spread over the saturated substrate, whereupon an alginate gel is formed, and the whole is air dried at ambient temperature.  The alginate membranes can be used in pressure apparatus.ALSO:Alginate membranes for use as ion-exchange membranes are prepared by applying a layer of an aqueous solution of an alkyl ammonium alginate to a porous substrate, for example a paper or membrane filter saturated with a solution containing polyvalent cations that form an alginate gel by reaction with the alginate solution, the alginate solution before application to the substrate being mixed with a softener, and, after the gel-forming process, the gel and the substrate are dried by being subjected to a drying process.  A hygroscopic liquid which is difficultly volatile is preferably used as softener, e.g. glycerol.  When the membrane is washed through, e.g. in the case of filtrations, the softener is washed out by water.  The partly shrunk alginate membrane on drying is detached from its connection with the substrate and the membrane together with the filter residue from the substrate removed.  The membrane may be floated off the substrate.  In Example 1, a sheet of porous filter substrate is saturated with an aqueous solution of AlCl3 6H2O.  A solution of sodium alginate and glycerine is spread over the saturated substrate, whereupon an alginate gel is formed, and the whole is air dried at ambient temperature.  In Example 2, La (NO3)3 6H2O is used instead of AlCl3 6H2O. The alginate membranes can be used in pressure apparatus.
Patent GB-247859-A (GB)
Title: Improvements in cushion tires
IPC: B60C7/12
Filed: 1925-09-21
Abstract: 247,859. Gillam, W. R. Sept. 21, 1925. Non-metallic elastic bodies and cores. - A cushion tyre having spaced lateral cavities 2 extending partially or (as shown) completely across the tyre is formed with one or more ribs 4, 5 which intersect the mouths of the cavities. The provision of the annular grooves in the mould is stated to ensure the proper filling-out of the rubber adjacent the mouths of the cavities during the moulding operation. Projecting beads may be formed at the mouths of the cavities.
Patent GB-1458538-A (GB)
Title: Lubricating compoisitions
IPC: C08G65/32
Filed: 1974-05-28
Abstract: 1458538 Polyoxyalkylene ether-esters INSTITUT FRANCAIS DU PETROLE 28 May 1974 [28 May 1973] 23557/74 Heading C3R [Also in Division C5] Esters of the formula R<SP>4</SP>[CO(OR<SP>5</SP>) n OR<SP>6</SP>] 3 , where R<SP>4</SP> is the hydrocarbyl radical of a tricarboxylic acid R<SP>4</SP>(COOH) 3 , R<SP>5</SP> is alkylene of 2 to 5 carbon atoms and R<SP>6</SP> is the hydrocarbyl radical of an aliphatic or alicyclic alcohol or phenol R<SP>6</SP>OH and each n is from 2 to 50 can be made by condensing the alkylene oxide on to the alcohol or phenol R<SP>6</SP>OH, and then esterifying the product with the tricarboxylic acid, which may itself be made by trimerizing an unsaturated aliphatic monocarboxylic acid and hydrogenating the trimer. In the examples, the alcohol is n-butanol, the alkylene oxide is propylene oxide, n is approximately 10 or approximately 22, and the acid is a commerical trimer. The esters are used as components in lubricating compositions, see Division C5.
Patent GB-380232-A (GB)
Title: An improved process for the production of soaps
IPC: C11D9/38
Filed: 1931-08-21
Abstract: A super-fatting agent, capable of binding large amounts of water, for use in the manufacture of soap, consists of a mixture of wool fats, whale shot (spermaceti), and bottle-nose whale oil, or refined products thereof, or of the corresponding esters synthetically produced.  Bottle-nose whale oil may be replaced, wholly or in part, by whale-shot oil.  Waxes and fats such as rump gland fat, Chinese insect wax, psylla, bees, palm, or curcas wax may be added, or the esters contained therein.
Patent GB-1179702-A (GB)
Title: Improvements relating to Seals for use in High-Pressure Apparatus
Inventor: THOMPSON EZRA COLLINS
IPC: F16J15/16
Filed: 1966-05-26
Abstract: 1,179,702. Piston and stuffing-box packing. GEORGE ANGUS & CO. Ltd. 23 May, 1967 [26 May, 1966], No. 23678/66. Headings F2B and F2T. In packing for use between relatively movable parts, e.g. a piston-rod and cylinder, and comprising an elastomeric sealing ring and an anti-extrusion ring 16 of synthetic plastics material, the sealing ring has lips 10, 11 extending from a base 12 with a flat radial surface 19 and the ring 16 is of right angle triangle cross-section with the sides subtending the right angle extending radially and axially, the radial side 17 being coplanar with the surface 19 and having a length of about onethird of the radial width of the sealing ring and meeting the hypotenuse 20 at an angle between 40 and 70 degrees. The sealing ring is of rubber and the anti-extrusion ring may be of nylon or P.T.F.E.
Patent GB-922015-A (GB)
Title: Method and apparatus for gas-liquid contact
IPC: B01D47/14
Filed: 1960-07-07
Abstract: 922,015. Contacting a gas with a liquid. F. L. YERZLEY. July 7, 1960 [July 7, 1959], No. 23756/60. Class 55 (2). In a method of contacting a gas with a liquid the gas is passed upwardly and the liquid downwardly through a bed of discrete aggregate particles and the area of the bottom surface of the bed exposed to gas flow is varied such that the bed is in use floded with liquid. The aggregate is supported on a foraminous plate and the desired portion of the surface area thereof may be closed to the flow of gas by transverse baffles or by suitably arranged plates. The support shown in Fig. 7 comprises a foraminous screen 20A, stationary sector-shaped strips 49 and sector-shaped strips 48 rotatably mounted on a shaft 50 rotatable from a position outside the chamber containing the bed of aggregate. In a modification shown in Fig. 9 elements 54 secured to rotatable rods 56 can be moved to vary the lipped area of a foraminous screen 52. Two or more beds of aggregate may be arranged one above the other and the gas and/or liquid flowing from one bed may be caused to move laterally before passing through a second bed. The aggregate may be crushed stone or marble chips and the beds 6 inches high.
Patent GB-1206632-A (GB)
Title: Liquid fuel injection nozzle units
Inventor: GLIKIN PAUL EDGAR
IPC: F02M61/12
Filed: 1967-05-23
Abstract: 1,206,632. Fuel injectors. C.A.V. Ltd. April 26, 1968 [May 23, 1967j, No.23886/67. Heading F1B. The lift of a needle valve 18 guided by back 17 is limited by engagement of a step 21 on the valve stem with a stop member 25, the amount of lift being determined by a washer 26 between member 25 and the back 17.
Patent GB-360077-A (GB)
Title: Improvements in preparing cigar wrappers
IPC: A24C1/04
Filed: 1930-08-09
Abstract: 360,077. Cigar-wrapping mechanism. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(International Cigar Machinery Co. ; 5520, 2nd Avenue, Brooklyn, New York, U.S.A.) Aug. 9, 1930, No. 23919. [Class 130.] The leaf is transferred, from the cutting bench, so that the edge which lies nearer to the operator forms the exposed or overlapping edge after rolling on to the bench. The placing on the bench is such that the stem portion of the leaf is cut to waste in preference to the leaf-edge. Successive positions of the leaf section F1, T1, .. F8, T8 are shown in Fig. 2 in full lines, the movements being effected from the main shaft of the machine through cain 43 actuating a roller 41, arm 40, and segment 37 which gears with a pinion 36 on a hollow shaft 10. An arm 15 radial to the shaft 10 is jointed to a further arm 17 having a bearing for a shaft 22 which supports the wrapper-carrier 23. The shaft 22 is oscillated through the medium of a pinion 25, segment 26, arm 29, and roller 30 working in the fixed cam-slot 31. A second groove 35 forms a path for a roller 34 integral with the arm 17. Suction is exerted through the shaft 10, and members 15, 17, 22, 23 all of which are hollow. A connection 44 supplies compressed air for detaching the flag end of the wrapper from the carrier 23.
Patent GB-912315-A (GB)
Title: An amplitude limiter
IPC: H03G11/02
Filed: 1961-07-03
Abstract: 912,315. Semi-conductor limiting circuits. SONY CORPORATION. July 3, 1961 [July 6, 1960], No. 23998/61. Class 40 (6). Signal amplitude limitation in both the forward and backward directions is effected by a backward diode having a constant voltage characteristic in both directions. If the diode conduction is symmetrical, limiting action is uniform in both directions under zero bias conditions. If, however, the diode conduction is asymmetrical, similar uniform result may be produced by biasing the diode. In Fig. 2, a signal source S feeds a transistor 2, the output of which includes a tuned circuit 5, 6 and a backward diode 10. In the event that the diode is asymmetric the necessary bias for uniform limiting action is provided by (1) a capacitor and a leak resistor connected across the capacitor or the diode (Fig. 3, not shown), or (2) a resistor connected in series with the coil 5 or the diode 10 (Figs. 4 and 5, not shown), or (3) a diode having a constant voltage characteristic on the forward direction connected in series or parallel with the diode 10 (Fig. 6, not shown).
Patent GB-1072873-A (GB)
Title: Moulding composite articles
Inventor: WOODS GEORGE
IPC: B29C44/14
Filed: 1963-06-17
Abstract: 1,072,873. Cushions &c. I M P E R I A L CHEMICAL INDUSTRIES Ltd. June 3, 1964 [June 17, 1963], No. 24014/63. Heading A4M. [Also in Division B5] A cushion is made by stressing a preformed, flexible, cavitied cover to increase by at least 5% the size of the cavity, foaming and allowing a polyurethane filling to set to an elastic condition therein and then removing the forces producing the stress. The cover may be a plastics sheet or plastics coated textile.
Patent GB-863525-A (GB)
Title: Pleated-wall tubular filter and method of manufacturing same
IPC: B01D46/24
Filed: 1959-07-13
Abstract: 863,525. Hollow filters. JAUME, R. July 13, 1959 [July 16, 1958], No. 24047/59. Class 46. [Also in Groups V and XXVIII] Two annular filtering walls 2a, 2b, Fig. 4, of woven material (e.g. polyamide resin) are formed into a filter element by moulding a plastic ring 3 about their inner (smaller) edges and moulding a plastic collar (4a or 4b) about each of their outer edges ; two or more of these elements then have their outer collars joined to form a unit. Each annulus may have reinforcing arms 5b, Fig. 1, and two quartercylindrical extensions 6 of the ring 3. The two filtering annuli of an element may be arranged in a mould (see Group V) and the parts 2a, b, 3, 4a, b, 5b, 6 formed as a one-piece framework by injection moulding. A tubular member may be secured to the peripheral collar at each end of a complete unit, and the unit may be mounted by these members in a casing. In Fig. 6 liquid introduced at 20 flows outward through the unit and passes finally through pipes 23. In Fig. 7, (not shown), the right-hand end of the unit is spaced from the end of the casing and closed by a plate, liquid flowing from right to left and inwards through the unit. Collapse of the unit as a result of excessive inlet pressure is prevented by the contacting of extensions 6 (see the right hand side of Fig. 4) ; these, however, may be omitted so that the filter may fold up completely. Dirt may be removed by shaking or by successively compressing and extending the unit after removal from its mounting. A spring may be interposed between the end of the casing and the plate closing the end of the unit.
Patent GB-376534-A (GB)
Title: Zinc-base die-casting alloy
IPC: C22C18/04
Filed: 1931-08-27
Abstract: A zinc-base die-casting alloy is free from magnesium and contains 2-10 per cent of aluminium, and over 2 and up to 6 per cent of copper, the balance being zinc of high purity containing at least 99,98 per cent and preferably over 99,99 per cent of zinc.  The tin content of the zinc should be not more than 0,001 per cent, and the lead and cadmium together not more than 0,01 per cent. Specifications 252,020, [Class 82 (i), Metals, Extracting &c.], and 376,988 are referred to.
Patent GB-282887-A (GB)
Title: Improvements in refrigerating plant for railway and other vehicles
IPC: B60H1/32
Filed: 1926-09-29
Abstract: 282,887. Stone & Co., Ltd., J., and Bridcut, S. H. Sept. 29, 1926. Refrigerating-chambers.-The compressor a of a refrigerating-machine for a railway car is pivoted at b to the undercarriage c and driven through belt gearing from the axle e of the car, the belt being adapted to slip when a predetermined speed is exceeded. In a modification, the compressor is driven by an electric motor mounted upon the compressor shaft and supplied with current from a dynamo suspended beneath the car, the dynamo being driven from the axle and adapted to charge a battery from which the motor may be supplied with current when the car is at rest. In this case, the switch between the motor and the dynamo is controlled by a thermostat in the refrigerator chamber. Alternatively, the switch is controlled by a pressure regulator in the condenser coil m. A lamp may be provided to indicate when the motor is running. The condenser coil communicates through an expansion valve o with the evaporator coil h which is disposed in a brine tank. By-pass control valves v<1> may be provided between the condenser coil and the expansion valve. Specification 9141/11, [Class 35, Dynamo-electric generators &c.], is referred to.
Patent GB-147378-A (GB)
Title: Improvements in the stabilisation of nitrocellulose and apparatus therefor
IPC: C08B5/08
Filed: 1919-10-02
Abstract: 147,378. Laan, B. van der. Oct. 2, 1919. Cellulose nitrates.-Stabilizing of nitrocellulose by boiling with water is carried out in a rotating boiler of wood or acid-resisting metal such as aluminium, and in the interior of which ribs or paddles may be fitted; the rotation of the boiler aided by the action of the paddles effects an opening-up and regular stabilizing in the mass of nitrocellulose, and at the end of the process the latter is in a condition in which it can be transferred to the grinding-engine by means of a pump. A suitable apparatus comprises a cylindrical receptacle a mounted horizontally and provided at its ends with trunnions which may run on ball-bearings; longitudinal ribs or paddles i are fitted in the interior of the cylinder, and extend as far as a perforated false end c, between which and the end proper is a space from which the exhaust pipe and discharge cock f lead. Steam is supplied through a pipe b, and manholes d are provided for the introduction and discharge of the nitrocellulose. The latter may be received in a hopper band transferred to the grinding-engine by means of a pump, or it may be pumped directly from the boiler to the grinding-engine.
Patent GB-205071-A (GB)
Title: Improvements in or relating to stoves for boiling purposes
IPC: F24B1/24
Filed: 1923-09-28
Abstract: 205,071. Svenska Aktiebolaget Gasaccumulator. Oct. 3, 1922, [Convention date]. Air supply, regulating; cooking-stoves; heat retainers.-A cooking stove comprises a metal heataccumulating body 1 at the lower end of which is a fire-place 3 and on the upper end of which utensils are heated. Primary air is supplied through a conduit 5 and is controlled by a thermostat 11 within the block 1. The gases pass through openings 6 to a channel 7, to which secondary air, the supply of which may also be thermostatically oontrolled, is led by a pipe 9. The body 1 is surrounded with heat-insulating material 16, such as hieselguhr, and is provided with a cover 17 which is removed when a utensil is to be heated. The gases may be passed through a number of similar heat accumulators in series, one arrangement described comprising a second heat accumulator similar to the first, a third in which an oven is arranged, and finally a " boiling-box." Liquid or gaseous fuel may be used in place of solid fuel.
Patent GB-462005-A (GB)
Title: Improvements relating to the treatment of textile fabrics
Filed: 1935-08-30
Abstract: Textile fabrics are subjected at normal temperatures to the action of formaldehyde in the presence of a proportion of free acid and a high concentration of a salt having a strong affinity for water but without a specific swelling effect on cellulose. Suitable salts are the chlorides of calcium, aluminium, and magnesium, which preferably are used in concentration of 70 per cent of the saturation concentration.  The process may be carried out in two stages, (1) impregnation of the fabric with formaldehyde solution followed by drying, and (2) treatment with the salt solution containing free acid.  The process may be used to increase the resistance of fabrics to creasing, or to render mechanical ornamental effects, e.g. embossing, glazing, or schreinering, fast to washing.  The mechanical effect may be applied before the first or second step in the two-step process.